WO2023024106A1 - 回复控制方法、装置、设备及存储介质 - Google Patents

回复控制方法、装置、设备及存储介质 Download PDF

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Publication number
WO2023024106A1
WO2023024106A1 PCT/CN2021/115141 CN2021115141W WO2023024106A1 WO 2023024106 A1 WO2023024106 A1 WO 2023024106A1 CN 2021115141 W CN2021115141 W CN 2021115141W WO 2023024106 A1 WO2023024106 A1 WO 2023024106A1
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WIPO (PCT)
Prior art keywords
link
sta
nstr
reply
frame
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PCT/CN2021/115141
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English (en)
French (fr)
Inventor
徐彦超
王泷
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Oppo广东移动通信有限公司
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Priority to CN202180099071.XA priority Critical patent/CN117441402A/zh
Priority to PCT/CN2021/115141 priority patent/WO2023024106A1/zh
Publication of WO2023024106A1 publication Critical patent/WO2023024106A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H04W76/16—Involving different core network technologies, e.g. a packet-switched [PS] bearer in combination with a circuit-switched [CS] bearer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

Definitions

  • the embodiments of the present application relate to the field of communication technologies, and in particular, to a reply control method, device, device, and storage medium.
  • a function that can support multiple links is defined.
  • two interconnected devices that support the multi-link function one is the station (Station, STA) multi-link device (Multi-Link Device, MLD), and the other is the access point (Access Point, AP) MLD.
  • STA station
  • MLD multi-link device
  • AP Access Point
  • Any one of the multiple links established between the STAMLD and the APMLD corresponds to an STA in the STA MLD as a logical entity, and also corresponds to an AP in the access point MLD as a logical entity.
  • NSTR Non-Simultaneous Transmission and Reception
  • Embodiments of the present application provide a reply control method, device, equipment, and storage medium. Described technical scheme is as follows:
  • a reply control method is provided, the method is executed by STA MLD, the STA MLD is NSTR STA MLD, and the STA MLD supports n link communication, where n is greater than A positive integer of 1, said method comprising:
  • the first STA in the STA MLD chooses not to reply to the target frame
  • the first STA is the STA corresponding to the first link in the n links
  • the NSTR constraint condition includes: the first STA receives the target frame on the first link , and, the target frame is a frame conforming to the immediate reply confirmation mechanism.
  • a reply control device the device is an NSTR device, the device supports n link communication, the n is a positive integer greater than 1, and the device includes: reply module;
  • the reply module is configured to choose not to reply to the target frame when the first STA satisfies the NSTR constraint condition
  • the first STA is the STA corresponding to the first link in the n links
  • the NSTR constraint condition includes: the first STA receives the target frame on the first link , and, the target frame is a frame conforming to the immediate reply confirmation mechanism.
  • a STAMLD is provided, the STAMLD is an NSTR STAMLD, the STAMLD supports n link communications, the n is a positive integer greater than 1, and the STAMLD includes a transceiver;
  • the transceiver is configured to select not to reply to the target frame by the first STA in the STA MLD when the first STA satisfies the NSTR constraint condition;
  • the first STA is the STA corresponding to the first link in the n links
  • the NSTR constraint condition includes: the first STA receives the target frame on the first link , and, the target frame is a frame conforming to the immediate reply confirmation mechanism.
  • a computer-readable storage medium is provided, and a computer program is stored in the storage medium, and the computer program is used for execution by a processor, so as to implement the above reply control method.
  • a chip includes a programmable logic circuit and/or program instructions, and is used to implement the above reply control method when the chip is running.
  • a computer program product or computer program includes computer instructions, the computer instructions are stored in a computer-readable storage medium, and a processor reads from the The computer-readable storage medium reads and executes the computer instructions, so as to realize the above reply control method.
  • the NSTR STA MLD receives the target frame on the first link
  • the first STA corresponding to the first link satisfies the NSTR constraint condition
  • the NSTR constraint condition includes:
  • the first STA receives the target frame on the first link, and the target frame is a frame that conforms to the immediate response confirmation mechanism.
  • the received frame can only be an RTS frame, and then for RTS
  • the implementation of frame selection without reply expands the RTS frame to a wider range of target frames that meet the immediate reply confirmation mechanism, such as: data frames, which increases the possibility that the first STA will choose not to reply to the received frame. In this way, it is avoided that the response behavior of the first STA interferes with the frame transceiving sequences of STAs on other links.
  • FIG. 1 is a schematic diagram of a wireless local area network provided by an embodiment of the present application
  • Fig. 2 is a schematic diagram of an uplink process between NSTR STAMLD and APMLD provided by an embodiment of the present application;
  • Fig. 3 is the schematic diagram that the STAMLD that one embodiment of the present application provides does not reply and allows to send (Clear to Send, CTS) frame;
  • Fig. 4 is the schematic diagram that STAMLD that one embodiment of the present application provides does not choose to reply CTS frame
  • FIG. 5 is a schematic diagram of a STAMLD reply ACK frame provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of STAMLD choosing not to reply to a CTS frame provided by an embodiment of the present application
  • FIG. 7 is a schematic diagram of a STAMLD reply CTS frame provided by an embodiment of the present application.
  • FIG. 8 is a flowchart of a reply control method provided by an embodiment of the present application.
  • FIG. 9 is a flowchart of a reply control method provided by an embodiment of the present application.
  • FIG. 10 is a schematic diagram of STAMLD choosing not to reply to an ACK frame provided by an embodiment of the present application.
  • FIG. 11 is a schematic diagram of a STAMLD reply CTS frame provided by an embodiment of the present application.
  • FIG. 12 is a schematic diagram of STAMLD choosing not to reply to a CTS frame provided by an embodiment of the present application.
  • Fig. 13 is a block diagram of a reply control device provided by an embodiment of the present application.
  • Fig. 14 is a schematic structural diagram of a STAMLD provided by an embodiment of the present application.
  • the network architecture and business scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute limitations on the technical solutions provided by the embodiments of the present application.
  • the evolution of the technology and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.
  • FIG. 1 shows a block diagram of a wireless local area network provided by an exemplary embodiment of the present application.
  • the wireless local area network may include: STAMLD10 and AP MLD20.
  • STAMLD10 includes one or more logical entities STA, and STA can be a wireless communication chip, a wireless sensor or a wireless communication terminal.
  • STA can be a wireless communication chip, a wireless sensor or a wireless communication terminal.
  • STA can be a wireless communication chip, a wireless sensor or a wireless communication terminal.
  • STA can be a wireless communication chip, a wireless sensor or a wireless communication terminal.
  • STA can be a wireless communication chip, a wireless sensor or a wireless communication terminal.
  • STA can be a wireless communication chip, a wireless sensor or a wireless communication terminal.
  • wireless fidelity Wireless Fidelity, WiFi
  • tablet computers supporting WiFi communication functions
  • set-top boxes supporting WiFi communication functions
  • smart TVs supporting WiFi communication functions smart wearable devices supporting WiFi communication functions
  • a vehicle communication device supporting the WiFi communication function and a computer supporting the WiFi communication function.
  • AP MLD 20 contains one or more logical entities AP.
  • AP can be the access point for mobile users to enter the wired network. It is mainly deployed in homes, buildings, and campuses. The typical coverage radius is tens of meters to hundreds of meters. Of course, it can also be deployed outdoors.
  • the AP is equivalent to a bridge connecting the wired network and the wireless network. Its main function is to connect various wireless network clients together, and then connect the wireless network to the Ethernet.
  • the AP may be a terminal device or a network device with a WiFi chip.
  • a multi-link is established between the STA MLD 10 and the AP MLD 20.
  • link 1 and link 2 exist between STA MLD 10 and AP MLD 20
  • STA MLD 10 includes: STA1 and STA2
  • AP MLD 20 includes: AP1 and AP2
  • STA1 and STA2 communicate with AP1 and AP2 respectively Transmission, that is, AP1 and AP2 are peer-to-peer logical entities of STA1 and STA2 respectively, and their corresponding links are link 1 and link 2 respectively.
  • both STA MLD 10 and AP MLD 20 support the 802.11 standard. It can be understood that the STA MLD 10 and the AP MLD 20 in the embodiment of the present application can also support the evolution standard of the 802.11 standard, and can also support other communication standards. For example, it supports 802.11be and subsequent versions.
  • functions that can support multi-link are defined. According to the definition of the two ends of the communication in the standard, one is STA MLD and the other is APMLD.
  • STA MLD and APMLD that have established multi-links can take advantage of multi-links to send and receive data on multiple links to achieve high throughput/low latency and other advantages.
  • a NSTR STAMLD is defined for two interconnected devices that support the Multiple Links Operation (MLO).
  • MLO Multiple Links Operation
  • RF Radio Frequency
  • NSTR STAMLD includes STA1 and STA2
  • APMLD includes AP1 and AP2
  • STA1 and AP1 correspond to a link
  • STA2 and AP2 corresponds to one link.
  • the transmission of NSTRSTA MLD on the two links is aligned, and the reception is also aligned.
  • Immediate Acknowledgment Procedure the Immediate Acknowledgment Procedure
  • SIFS Short Interframe Space
  • RTS Request to Send
  • BA Block Acknowledgment
  • NSTR limited (limited) type To determine whether an STA on an NSTR link in the NSTRSTA MLD is an NSTR limited (limited) type, the following three NSTR constraint conditions need to be met at the same time:
  • the link where the STA is located belongs to an NSTR link pair (link pairs) in the NSTRSTA MLD, that is, the link where the STA is located and one or more other links in the NSTR STA MLD cannot send and receive at the same time.
  • the STA receives an RTS frame on the link mentioned in 1.
  • the STAs on these other one or more links are in the transmission opportunity (Transmission Opportunity, TxOP) ) in the role of the owner (holder) or in the role of the TxOP responder (responder).
  • TxOP Transmission Opportunity
  • a STA when a STA receives an RTS frame and meets the standard 802.11 rule conditions for replying to a CTS frame, if the STA does not meet the NSTR constraints, the STA is required to reply to a CTS frame immediately; if The STA satisfies the NSTR constraint condition, which requires that the STA can choose to reply a CTS frame, or choose not to reply a CTS frame.
  • link 1 and link 2 of NSTRSTA MLD are NSTR links.
  • STA1 on link 1 is the TxOP owner, that is, STA1 is obtaining a TxOP duration (duration )
  • an RTS frame is received on link 2.
  • STA2 on link 2 can reply a CTS frame even if it meets the standard 802.11 (that is, the RTS/CTS mechanism in the 802.11 protocol before 802.11be).
  • STA2 on link 2 can choose not to reply the CTS frame, so as not to cause interference to reception on link 1.
  • link 1 and link 2 of NSTRSTA MLD are NSTR links, and when STA1 on link 1 is a TxOP responder, an RTS frame is received on link 2, and at this time STA2 on link 2, even if it satisfies the standard 802.11 rule condition that can reply CTS frame, because STA2 on link 2 satisfies the constraint condition of NSTR at this time, so STA2 on link 2 can choose not to reply CTS frame to avoid Interference with reception on link 1.
  • NSTRSTA MLD In the evolution process of the current standard, it is being discussed: to make the same requirement for NSTRSTA MLD to reply ACK/BA frame on a certain NSTR link. That is, when an STA on an NSTR link on the NSTR STA MLD needs to reply an ACK/BA frame immediately, it needs to check whether the STA on the current link meets the NSTR constraint conditions. If it does not meet the NSTR constraint conditions, it must immediately Reply ACK/BA frame; if the NSTR constraints are met, you can choose to reply ACK/BA frame, or you can choose not to reply ACK/BA frame.
  • the requirement is that the STA should receive an RTS frame; but obviously, when the STA needs to reply an ACK/BA frame, the corresponding The received frame must not be an RTS frame, and the NSTR constraint cannot be satisfied at this time.
  • link 1 and link 2 of NSTRSTA MLD are NSTR links, and when STA1 on link 1 is the TxOP owner, a non-RTS frame is received on link 2, which STA2 on link 2 does not satisfy the NSTR constraint, so STA2 on link 2 needs to reply an ACK frame immediately, and the transmission of the ACK frame may interfere with the reception on link 1.
  • STA1 in NSTR STAMLD when it receives a broadcast frame on link 1, STA2 on link 2 receives an RTS frame at this time, because STA2 does not satisfy the NSTR constraint condition, STA2 must respond to CTS immediately according to the existing mechanism under the condition that STA2 meets the standard 802.11 rule that can reply CTS. This results in the transmission of the CTS frame of STA2, which will interfere with the reception of the broadcast frame on STA1.
  • the NSTR constraints include: the first STA receives the target frame on the first link, and the target frame is a frame that conforms to the immediate reply confirmation mechanism.
  • the received frame can only be For the RTS frame, and then select the implementation method of not replying to the RTS frame, expand the RTS frame to a wider range of target frames that meet the immediate reply confirmation mechanism, such as: data frames, and increase the first STA to select the received frame The possibility of not performing a reply, so as to avoid the interference of the reply behavior of the first STA on the frame transceiving sequence on other links.
  • the immediate reply confirmation mechanism such as: data frames
  • FIG. 8 shows a flowchart of a reply control method provided by an embodiment of the present application.
  • the method can be applied to the wireless local area network shown in FIG. 1 .
  • the method may include the steps of:
  • Step 802 The first AP in the AP MLD sends the target frame to the first STA in the STA MLD through the first link.
  • the AP MLD in the embodiment of the present application supports n link communications, and n is a positive integer greater than 1. That is, multiple links are established between the STA MLD and the AP MLD in the embodiment of the present application, including: the first link to the nth link.
  • the AP MLD includes logical entity APs corresponding to n links respectively one-to-one, such as: the first link corresponds to the first AP in the AP MLD, and the nth link corresponds to the nth AP in the AP MLD.
  • Step 804 The first STA in the STA MLD receives the target frame through the first link.
  • Step 806 When the first STA satisfies the NSTR constraint condition, the first STA in the STA MLD chooses not to reply to the target frame; wherein, the first STA is the STA corresponding to the first link in the n links,
  • the NSTR constraint condition includes: the target frame is received on the first link, and the target frame is a frame conforming to the immediate reply acknowledgment mechanism.
  • the STA MLD in the embodiment of the present application supports n link communication, and n is a positive integer greater than 1. That is, multiple links are established between the STA MLD and the AP MLD in the embodiment of the present application, including: the first link to the nth link.
  • the STA MLD includes logical entity STAs corresponding to n links respectively, for example: the first link corresponds to the first STA in the STA MLD, and the nth link corresponds to the nth STA in the STA MLD.
  • the STA MLD in the embodiment of this application is NSTR STA MLD.
  • NSTR STA MLD means that the STA MLD cannot independently transmit and receive data on multiple links at the same time. If you want to use multiple links at the same time, you need Send or receive simultaneously on the road.
  • the first STA on the first link among the n links judges whether the NSTR constraint condition is satisfied, and if the NSTR constraint condition is satisfied, the first STA chooses not to process the received target frame. reply.
  • the first STA may also choose to reply to the received target frame when the NSTR constraint condition is met.
  • the STA MLD in the embodiment of the present application is an NSTR STA MLD
  • data cannot be transmitted and received independently and simultaneously on multiple links. Therefore, if other links are receiving, the first STA will not check the received Replying with the target frame can avoid interfering with reception on other links.
  • the NSTR constraint condition is a condition for the STA in the STA MLD to judge whether to comply with the Immediate Acknowledgment Procedure (Immediate Acknowledgment Procedure).
  • the STA can choose not to reply, that is, it does not follow the immediate reply confirmation mechanism; if the NSTR constraint conditions are not satisfied, the STA needs to perform an immediate reply confirmation, that is, it follows the immediate reply confirmation mechanism.
  • the mechanism of immediate reply acknowledgment refers to a mechanism that the receiving end needs to immediately reply and confirm to the sending end after receiving the frame sent by the sending end.
  • the NSTR constraint condition includes: the first STA receives the target frame on the first link, and the target frame is a frame conforming to the immediate reply confirmation mechanism.
  • the NSTR constraint condition also includes other constraint conditions, which will be described in the following embodiments and will not be repeated here.
  • the NSTR constraints include restrictions on the type of target frame received, for example, the RTS frame needs to be received on the first link, and the RTS frame is a type that conforms to the immediate reply confirmation mechanism frame.
  • the NSTR constraints include: the first STA receives the target frame on the first link, and the target frame is a frame that conforms to the immediate reply confirmation mechanism, and the NSTR constraint does not include the target frame received types of restrictions.
  • the target frames include: RTS frames and other frames requiring an immediate reply for confirmation.
  • the frames replying to the target frame include: CTS frame, ACK frame and BA frame.
  • other frames requiring an immediate reply confirmation refer to other types of frames conforming to the immediate reply confirmation mechanism except the RTS frame.
  • the first STA receives the RTS frame on the first link.
  • the first STA meets the NSTR constraint condition and the first STA receives the target frame on the first link, and the target frame conforms to the immediate reply acknowledgment mechanism frame, and also meet other NSTR constraints, the first STA chooses not to reply a CTS frame to the RTS frame.
  • the first STA receives a data frame on the first link.
  • the first STA meets the NSTR constraints and the first STA receives the target frame on the first link, and the target frame is in line with the immediate reply frame of the acknowledgment mechanism, and also satisfy other NSTR constraint conditions, the first STA chooses not to reply an ACK frame to the data frame.
  • the first STA receives a data frame on the first link.
  • the first STA meets the NSTR constraints and the first STA receives the target frame on the first link, and the target frame is in line with the immediate reply acknowledgment mechanism frame, and also meet other NSTR constraint conditions, the first STA chooses not to reply a BA frame to the data frame.
  • the NSTR STA MLD when the NSTR STA MLD receives the target frame on the first link, if the first STA corresponding to the first link satisfies the NSTR constraint condition, then the first STA can choose not to reply, where the NSTR constraints include: the first STA receives the target frame on the first link, and the target frame is a frame that conforms to the immediate reply confirmation mechanism, compared with the traditional NSTR constraints that limit the reception
  • the received frame can only be an RTS frame, and then selects the implementation method of not replying to the RTS frame, and expands the RTS frame to a wider range of target frames that meet the immediate reply confirmation mechanism, such as: data frames, adding the first STA pair
  • the received frame selects the possibility of not replying, so as to avoid the interference of the reply behavior of the first STA on the frame sending and receiving sequences of STAs on other links.
  • the NSTR constraint condition in addition to the condition that the first STA receives the target frame on the first link, and the target frame is a frame conforming to the immediate reply confirmation mechanism, the NSTR constraint condition also includes the following two conditions :
  • the first link belongs to an NSTR link pair in the NSTR STA MLD.
  • the first link is a link in the NSTR link pair.
  • the NSTR link pair includes at least two links that cannot independently transmit and receive data simultaneously.
  • NSTR STA MLD establishes link 1, link 2, and link 3, wherein, link 1 and link 2 belong to an NSTR link pair, and link 1 and link 2 cannot independently and simultaneously carry out data send and receive.
  • Condition 2 There is at least one second STA on the second link that is a transmission opportunity owner or a transmission opportunity responder or is in a state of receiving a frame that does not require a reply.
  • the second link is any other NSTR link in the NSTR link pair to which the first link belongs.
  • the second link is another link except the first link.
  • the first STA considers that condition 2 is satisfied: the STA on the other link in the NSTR link pair is the owner of the transmission opportunity; the STA in the NSTR link pair STAs on other links are transmit opportunity responders; STAs on other links in the NSTR link pair are in the state of receiving frames that do not require a reply.
  • the transmission opportunity owner means that the STA has obtained a transmission opportunity through channel competition;
  • the transmission opportunity responder means that the STA receives a frame in the frame exchange sequence from the transmission opportunity owner, and the STA A reply is required for this frame.
  • the frames that do not need to be replied include at least one of the following: multicast frames; broadcast frames; frames that do not need to reply with ACK; frames that do not need to reply with BA.
  • the definition of the traditional NSTR constraints has been modified for the situation that other STAs are receiving frames that do not require a reply, specifically: in the above condition 2, add that other STAs are receiving frames that do not require a reply Therefore, when other STAs are receiving frames that do not require a reply, the first STA also considers that the NSTR constraint condition is met, and then may choose not to reply immediately for confirmation.
  • the STA MLD performs the following steps: when the first STA satisfies the NSTR constraint condition, or there is at least one third STA on the third link that is in the state of receiving a frame that does not require a reply , the first STA in the STA MLD chooses not to reply to the target frame; wherein, the third link is any other NSTR link in the NSTR link pair to which the first link belongs.
  • the third link is another link except the first link.
  • the frames that do not need to be replied include at least one of the following: multicast frames; broadcast frames; frames that do not need to reply with ACK; frames that do not need to reply with BA.
  • the NSTR constraint condition in addition to the condition that the first STA receives the target frame on the first link, and the target frame is a frame conforming to the immediate reply confirmation mechanism, the NSTR constraint condition also includes the following two condition:
  • the first link belongs to an NSTR link pair in the NSTR STA MLD.
  • the first link is a link in the NSTR link pair.
  • the NSTR link pair includes at least two links that cannot transmit and receive independently and simultaneously.
  • Condition 2 the fourth STA on at least one fourth link is a transmission opportunity owner or a transmission opportunity responder.
  • the fourth link is any other NSTR link in the NSTR link pair to which the first link belongs.
  • the fourth link is another link except the first link.
  • the first STA considers that condition 2 is satisfied: the STA on the other link in the NSTR link pair is the owner of the transmission opportunity; the STA in the NSTR link pair STAs on other links are transmit opportunity responders.
  • the definition of the traditional NSTR constraints is not further modified, but it is independently judged whether other STAs are receiving frames that do not need a reply, then in other STAs When receiving a frame that does not require a reply, the first STA may also choose not to perform an immediate reply confirmation.
  • the method provided by this embodiment considers that other STAs are receiving frames that do not require a reply when the first STA determines whether to respond immediately to a received frame, thereby further avoiding the first STA
  • the reply behavior interferes with the frame sending and receiving sequences of STAs on other links.
  • the time point for judging whether the first STA satisfies the NSTR constraint condition is selected as the time point when the first STA expects to reply to the target frame.
  • FIG. 9 shows a flowchart of a reply control method provided by an embodiment of the present application.
  • the method can be applied to the wireless local area network shown in FIG. 1 .
  • the method may include the steps of:
  • Step 902 The first AP in the AP MLD sends the target frame to the first STA in the STA MLD through the first link.
  • Step 904 The first STA in the STA MLD receives the target frame through the first link.
  • Step 906 At the time point when the first STA expects to reply to the target frame, determine whether the first STA on the first link satisfies the NSTR constraint condition.
  • the first STA is the STA corresponding to the first link in the n links
  • the NSTR constraint condition includes: the first STA receives the target frame on the first link, and the target frame conforms to the immediate reply confirmation mechanism frame.
  • the first STA After the first STA receives the target frame, there will generally be a period of time, such as SIFS time, so as to arrive at the time point when the first STA expects to reply to the target frame.
  • SIFS time a period of time, such as SIFS time
  • the judgment time point is postponed to the time point when the first STA is expected to reply to the target frame, so as to avoid the time period between the time point when the target frame is received and the time point when the target frame is expected to be replied. , changes in the status of other links affect the accuracy of the judgment.
  • Step 908 When the first STA satisfies the NSTR constraint condition, the first STA in the STA MLD chooses not to reply to the target frame; wherein, the first STA is the STA corresponding to the first link in the n links,
  • the NSTR constraint condition includes: the target frame is received on the first link, and the target frame is a frame conforming to the immediate reply acknowledgment mechanism.
  • the method provided by this embodiment delays the time point of judging whether the NSTR constraint is satisfied to the time point when the first STA expects to reply to the target frame. Compared with the traditional method of judging at the time point when the target frame is received, it avoids the influence of the status of other links on the judgment accuracy during the time period from the time point when the target frame is received to the time point when the reply is expected. It can more accurately judge whether the reply behavior on the first link will cause interference to the frame sending and receiving sequence on other links, thereby improving the utilization rate of the air interface.
  • link 1 and link 2 of NSTR STA MLD are NSTR links, when STA1 on link 1 is the TxOP owner, a non-RTS frame is received on link 2, At this time, STA2 on link 2 satisfies the NSTR constraint condition, so STA2 on link 2 may choose not to reply an ACK frame, so as to avoid interference to reception on link 1.
  • link 1 and link 2 of NSTR STA MLD are NSTR links
  • the time point when STA2 on link 2 judges whether it satisfies the NSTR constraint condition is: STA2 expects to reply and confirm immediately
  • the time point of that is, the time point when the CTS frame is expected to be sent in the figure, at this time, STA1 on link 1 has ended its role as the TxOP owner, so STA2 judges that it does not meet the NSTR constraint conditions, and will still reply CTS normally frame.
  • link 1 and link 2 of NSTR STA MLD are NSTR links
  • STA1 on link 1 is receiving a broadcast frame
  • STA2 on link 2 is expecting to reply to a CTS frame
  • STA2 may choose not to reply a CTS frame, so as not to cause interference to reception on STA1.
  • the foregoing method embodiments can be separately implemented as a reply control method on the STA MLD side, and can also be separately implemented as a reply control method on the AP MLD side.
  • FIG. 13 shows a block diagram of a reply control device provided by an embodiment of the present application.
  • the device has the function of realizing the above method example, and the function may be realized by hardware, or may be realized by executing corresponding software by hardware.
  • the device can be the STA MLD introduced above, or it can be set in the STA MLD.
  • the device is an NSTR device, and the device supports n link communications, where n is a positive integer greater than 1.
  • the device 1300 may include: a reply module 1310;
  • the reply module 1310 is configured to choose not to reply to the target frame when the first STA satisfies the NSTR constraint condition;
  • the first STA is the STA corresponding to the first link in the n links
  • the NSTR constraint condition includes: the first STA receives the target frame on the first link , and, the target frame is a frame conforming to the immediate reply confirmation mechanism.
  • the NSTR constraints also include:
  • the first link belongs to an NSTR link pair in the NSTR device
  • the second link is any other NSTR link in the NSTR link pair to which the first link belongs.
  • the reply module 1310 is configured to satisfy the NSTR constraint condition when the first STA, or there is at least one third STA on the third link that is receiving a frame that does not need to reply In the case of the state of , the first STA chooses not to reply to the target frame;
  • the third link is any other NSTR link in the NSTR link pair to which the first link belongs.
  • the NSTR constraints also include:
  • the first link belongs to an NSTR link pair in the NSTR device
  • a fourth STA on at least one fourth link is a transmission opportunity owner or a transmission opportunity responder
  • the fourth link is any other NSTR link in the NSTR link pair to which the first link belongs.
  • the frame that does not require a reply includes at least one of the following:
  • the device further includes: a judging module
  • the judging module is configured to judge whether the first STA on the first link satisfies the NSTR constraint at a time point when the first STA expects to reply to the target frame.
  • the target frames include: RTS frames and other frames that require an immediate reply and confirmation.
  • the device provided by the above embodiment realizes its functions, it only uses the division of the above-mentioned functional modules as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional modules according to actual needs. That is, the content structure of the device is divided into different functional modules to complete all or part of the functions described above.
  • FIG. 14 shows a schematic structural diagram of a STAMLD provided by an embodiment of the present application.
  • the STAMLD may include: a processor 1401 , a receiver 1402 , a transmitter 1403 , a memory 1404 and a bus 1405 .
  • the processor 1401 includes one or more processing cores, and the processor 1401 executes various functional applications and scoreboard status updates by running software programs and modules.
  • the receiver 1402 and the transmitter 1403 can be realized as a transceiver 1406, and the transceiver 1406 can be a communication chip.
  • the memory 1404 is connected to the processor 1401 through the bus 1405 .
  • the memory 1404 may be used to store a computer program, and the processor 1401 is used to execute the computer program, so as to implement various steps performed by the terminal device in the foregoing method embodiments.
  • the memory 1404 can be realized by any type of volatile or non-volatile storage device or their combination, and the volatile or non-volatile storage device includes but not limited to: random-access memory (Random-Access Memory, RAM) And read-only memory (Read-Only Memory, ROM), erasable programmable read-only memory (Erasable Programmable Read-Only Memory, EPROM), electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), flash memory or other solid-state storage technologies, compact disc read-only memory (CD-ROM), high-density digital video disc (Digital Video Disc, DVD) or other optical storage, tape cartridges, tapes, disks storage or other magnetic storage devices.
  • RAM Random-Access Memory
  • ROM read-only memory
  • EPROM erasable programmable read-only memory
  • EPROM erasable programmable Read-Only Memory
  • EEPROM Electrically erasable programmable read-only memory
  • the transceiver 1406 is configured to select the first STA in the STA MLD not to reply to the target frame when the first STA satisfies the NSTR constraint condition;
  • the first STA is the STA corresponding to the first link in the n links
  • the NSTR constraint condition includes: the first STA receives the target frame on the first link , and, the target frame is a frame conforming to the immediate reply confirmation mechanism.
  • the NSTR constraints also include:
  • the first link belongs to an NSTR link pair in the NSTR device
  • the second link is any other NSTR link in the NSTR link pair to which the first link belongs.
  • the transceiver 1406 is configured to satisfy the NSTR constraint condition when the first STA, or there is at least one third STA on the third link that is receiving a frame that does not require a reply In the case of the state of , the first STA chooses not to reply to the target frame;
  • the third link is any other NSTR link in the NSTR link pair to which the first link belongs.
  • the NSTR constraints also include:
  • the first link belongs to an NSTR link pair in the NSTR device
  • a fourth STA on at least one fourth link is a transmission opportunity owner or a transmission opportunity responder
  • the fourth link is any other NSTR link in the NSTR link pair to which the first link belongs.
  • the frame that does not require a reply includes at least one of the following:
  • the processor 1401 is configured to determine whether the first STA on the first link meets the requirements at the time point when the first STA expects to reply to the target frame. The above NSTR constraints.
  • the target frames include: RTS frames and other frames that require an immediate reply and confirmation.
  • the embodiment of the present application also provides a computer-readable storage medium, where a computer program is stored in the storage medium, and the computer program is used to be executed by a processor of the STAMLD, so as to implement the above reply control method.
  • the computer-readable storage medium may include: a read-only memory (Read-Only Memory, ROM), a random-access memory (Random-Access Memory, RAM), a solid-state hard drive (Solid State Drives, SSD) or an optical disc.
  • the random access memory may include resistive random access memory (Resistance Random Access Memory, ReRAM) and dynamic random access memory (Dynamic Random Access Memory, DRAM).
  • the embodiment of the present application also provides a chip, the chip includes a programmable logic circuit and/or program instructions, and when the chip runs on the STAMLD, it is used to implement the above reply control method.
  • the embodiment of the present application also provides a computer program product or computer program, the computer program product or computer program includes computer instructions, the computer instructions are stored in a computer-readable storage medium, and the processor of STAMLD can read from the computer The computer instruction is read and executed by reading the storage medium, so as to realize the above reply control method.
  • the processor in this embodiment of the present application includes: an application specific integrated circuit (Application Specific Integrated Circuit, ASIC).
  • ASIC Application Specific Integrated Circuit
  • the "indication" mentioned in the embodiments of the present application may be a direct indication, may also be an indirect indication, and may also mean that there is an association relationship.
  • a indicates B which can mean that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
  • the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or that there is an association between the two, or that it indicates and is indicated, configuration and is configuration etc.
  • the "plurality” mentioned herein means two or more.
  • “And/or” describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B may indicate: A exists alone, A and B exist simultaneously, and B exists independently.
  • the character “/” generally indicates that the contextual objects are an "or” relationship.
  • the numbering of the steps described herein only exemplarily shows a possible sequence of execution among the steps.
  • the above-mentioned steps may not be executed according to the order of the numbers, such as two different numbers
  • the steps are executed at the same time, or two steps with different numbers are executed in the reverse order as shown in the illustration, which is not limited in this embodiment of the present application.
  • the functions described in the embodiments of the present application may be implemented by hardware, software, firmware or any combination thereof.
  • the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium.
  • Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • a storage media may be any available media that can be accessed by a general purpose or special purpose computer.

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Abstract

一种回复控制方法，由STA MLD执行， STA MLD是NSTR STA MLD， STA MLD支持n条链路通信， n为大于1的正整数，包括：在第一STA满足NSTR约束条件的情况下， STA MLD中的第一STA选择不对目标帧进行回复；其中，第一STA是与n条链路中的第一链路对应的STA，NSTR约束条件包括：第一STA在第一链路接收到目标帧，且目标帧是符合立即回复确认机制的帧。

Description

回复控制方法、装置、设备及存储介质 技术领域
本申请实施例涉及通信技术领域，特别涉及一种回复控制方法、装置、设备及存储介质。
背景技术
在无线局域网的标准中，定义了可以支持多链路(Multiple Links)的功能。按照标准中对于通信两端的定义，支持多链路功能的互连的两个设备，一个是站点(Station，STA)多链路设备(Multi-Link Device，MLD)，一个是接入点(Access Point，AP)MLD。STAMLD和APMLD之间建立的多条链路中的任一条链路均对应STA MLD中的一个作为逻辑实体的STA，也对应接入点MLD中的一个作为逻辑实体的AP。
对于STA MLD，定义了一种不可同时收发(Non-Simultaneous Transmission and Reception，NSTR)STA MLD。在NSTRSTA MLD的一条链路上收到符合立即回复确认机制的帧时，该STA MLD可以判断该链路上的STA是否满足NSTR约束(limited)条件，若该STA满足NSTR约束条件时，可以选择不回复该帧。
发明内容
本申请实施例提供了一种回复控制方法、装置、设备及存储介质。所述技术方案如下：
根据本申请实施例的一个方面，提供了一种回复控制方法，所述方法由STA MLD执行，所述STA MLD是NSTR STA MLD，所述STA MLD支持n条链路通信，所述n为大于1的正整数，所述方法包括：
在第一STA满足NSTR约束条件的情况下，所述STA MLD中的所述第一STA选择不对目标帧进行回复；
其中，所述第一STA是与所述n条链路中的第一链路对应的STA，所述NSTR约束条件包括：所述第一STA在所述第一链路接收到所述目标帧，且，所述目标帧是符合立即回复确认机制的帧。
根据本申请实施例的一个方面，提供了一种回复控制装置，所述装置是 NSTR装置，所述装置支持n条链路通信，所述n为大于1的正整数，所述装置包括：回复模块；
所述回复模块，用于在第一STA满足NSTR约束条件的情况下，所述第一STA选择不对目标帧进行回复；
其中，所述第一STA是与所述n条链路中的第一链路对应的STA，所述NSTR约束条件包括：所述第一STA在所述第一链路接收到所述目标帧，且，所述目标帧是符合立即回复确认机制的帧。
根据本申请实施例的一个方面，提供了一种STAMLD，所述STAMLD是NSTR STAMLD，所述STAMLD支持n条链路通信，所述n为大于1的正整数，所述STAMLD包括收发器；
所述收发器，用于在第一STA满足NSTR约束条件的情况下，所述STA MLD中的所述第一STA选择不对目标帧进行回复；
其中，所述第一STA是与所述n条链路中的第一链路对应的STA，所述NSTR约束条件包括：所述第一STA在所述第一链路接收到所述目标帧，且，所述目标帧是符合立即回复确认机制的帧。
根据本申请实施例的一个方面，提供了一种计算机可读存储介质，所述存储介质中存储有计算机程序，所述计算机程序用于处理器执行，以实现上述回复控制方法。
根据本申请实施例的一个方面，提供了一种芯片，所述芯片包括可编程逻辑电路和/或程序指令，当所述芯片运行时，用于实现上述回复控制方法。
根据本申请实施例的一个方面，提供了一种计算机程序产品或计算机程序，所述计算机程序产品或计算机程序包括计算机指令，所述计算机指令存储在计算机可读存储介质中，处理器从所述计算机可读存储介质读取并执行所述计算机指令，以实现上述回复控制方法。
本申请实施例提供的技术方案可以带来如下有益效果：
NSTR STA MLD在第一链路上接收到目标帧时，在第一链路对应的第一STA满足NSTR约束条件的情况下，则第一STA可以选择不进行回复，其中，NSTR约束条件包括：第一STA在第一链路接收到目标帧，且，目标帧是符合立即回复确认机制的帧，相较于传统的NSTR约束条件中限制了接收到的帧只能为RTS帧，进而针对RTS帧选择不进行回复的实现方式，将RTS帧拓展到范围更广的符合立即回复确认机制的目标帧，如：数据帧，增加了第一STA对接收到的帧选择不进行回复的可能性，从而避免第一STA的回复行为对其他链路 上的STA的帧收发序列的干扰。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请一个实施例提供的无线局域网的示意图；
图2是本申请一个实施例提供的NSTR STAMLD和APMLD之间的上行过程的示意图；
图3是本申请一个实施例提供的STAMLD选择不回复允许发送(Clear to Send，CTS)帧的示意图；
图4是本申请一个实施例提供的STAMLD选择不回复CTS帧的示意图；
图5是本申请一个实施例提供的STAMLD回复ACK帧的示意图；
图6是本申请一个实施例提供的STAMLD选择不回复CTS帧的示意图；
图7是本申请一个实施例提供的STAMLD回复CTS帧的示意图；
图8是本申请一个实施例提供的回复控制方法的流程图；
图9是本申请一个实施例提供的回复控制方法的流程图；
图10是本申请一个实施例提供的STAMLD选择不回复ACK帧的示意图；
图11是本申请一个实施例提供的STAMLD回复CTS帧的示意图；
图12是本申请一个实施例提供的STAMLD选择不回复CTS帧的示意图；
图13是本申请一个实施例提供的回复控制装置的框图；
图14是本申请一个实施例提供的STAMLD的结构示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施方式作进一步地详细描述。
本申请实施例描述的网络架构以及业务场景是为了更加清楚地说明本申请实施例的技术方案，并不构成对本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
请参考图1，其示出了本申请一个示例性实施例提供的无线局域网的框图，该无线局域网可以包括：STAMLD10和AP MLD 20。
STAMLD10中包含一个或多个逻辑实体STA，STA可以为无线通讯芯片、无线传感器或无线通信终端。例如支持无线保真(Wireless Fidelity，WiFi)通讯功能的移动电话、支持WiFi通讯功能的平板电脑、支持WiFi通讯功能的机顶盒、支持WiFi通讯功能的智能电视、支持WiFi通讯功能的智能可穿戴设备、支持WiFi通讯功能的车载通信设备和支持WiFi通讯功能的计算机。
AP MLD 20中包含一个或多个逻辑实体AP。其中，AP可以为移动用户进入有线网络的接入点，主要部署于家庭、大楼内部以及园区内部，典型覆盖半径为几十米至上百米，当然，也可以部署于户外。AP相当于一个连接有线网和无线网的桥梁，主要作用是将各个无线网络客户端连接到一起，然后将无线网络接入以太网。具体的，AP可以是带有WiFi芯片的终端设备或者网络设备。
在本申请实施例中，STA MLD 10和AP MLD 20之间建立了多链路。示例性的，STA MLD 10和AP MLD 20之间存在链路1和链路2，STA MLD 10包括：STA1和STA2，AP MLD 20包括：AP1和AP2，STA1和STA2分别与AP1和AP2进行数据传输，即AP1和AP2分别是STA1和STA2的对等逻辑实体，其对应的链路分别为链路1和链路2。
在本申请实施例中，STA MLD 10和AP MLD 20均支持802.11标准。可以理解的是，本申请实施例中的STA MLD 10和AP MLD 20也可以支持802.11标准的演进标准，也可以支持其他通信标准。例如，支持802.11be等以及后续版本。
在介绍本申请技术方案之前，先对本申请涉及的一些技术知识进行介绍说明。
在相关标准中，定义了可以支持多链路的功能。按标准中对于通信两端的定义，一个是STA MLD，一个是APMLD。相互建立了多链路的STA MLD和APMLD可以利用多链路的优势，在多个链路上进行数据收发，以达到高吞吐/低时延等优势。
对于支持多链路功能(Multiple Links Operation，MLO)的互连的两个设备，定义了一种NSTR STAMLD。在这种支持多链路的设备里，由于射频(Radio Frequency，RF)等的限制，当一个链路在做发送(transmission)时，会在设备内造成相互干扰(in-device interference)，另一个链路无法做正常接收(reception)， 导致无法在多个链路上独立地同时进行数据收发，即，如果这种NSTR STAMLD设备想要同时使用多个链路，需要在多个链路上同时发送或是同时接收。
示例性的，如图2所示，是一个NSTR STAMLD和APMLD之间的上行(UpLink，UL)过程，NSTR STAMLD包括STA1和STA2，APMLD包括AP1和AP2，STA1和AP1对应一条链路，STA2和AP2对应一条链路，在理想情况下，NSTRSTA MLD在两个链路上的发送是对齐(align)在一起的，接收也是对齐在一起的。
因为在802.11be的多链路操作中，多个链路间的传输或接收，由于数据包的长度、不同链路的物理速率不同等，会无法对齐在一起，导致会遇到某个链路正在传输或接收的过程，另外一个链路需要进行传输，这时就需要考虑这个链路下预期的传输会不会对正在进行传输或接收的链路出现干扰，导致这个链路无法正常传输或接收。
在802.11中，有一种传输要符合立即回复确认机制(Immediate Acknowledgement Procedure)过程，该过程是指的某个设备在收到对端设备的某些类型的帧时，这个设备需要在收到这个帧后，间隔最小帧间间隔(Short Interframe Space，SIFS)时间，立即向对端设备回复确认。比如，收到请求发送(Request to Send，RTS)帧，在满足条件下，需要立即回复CTS帧；在收到数据帧，需要立即回复确认(Ack)或是块确认(Block Acknowledgement，BA)帧。
在NSTRSTA MLD的NSTR多链路下，因为某个NSTR链路的传输可能会对另一个NSTR链路上的接收造成干扰，所以当前标准中对于这些符合立即回复确认机制的传输，又加入了NSTR约束条件。
当前的判断NSTRSTA MLD中某个NSTR链路上的STA是否为NSTR约束(limited)类型，需要同时满足如下三个NSTR约束条件：
1、这个STA所在的链路属于NSTRSTA MLD中一个NSTR链路对(link pairs)，即这个STA所在的链路和NSTR STA MLD中其他的一个或多个链路不能同时收发。
2、这个STA在1中所述的链路上收到了一个RTS帧。
3、对于与这个STA的所在链路上构成NSTR链路对的其他一个或多个链路上，这时，这些其他的一个或多个链路上的STA是处于传输机会(Transmission Opportunity，TxOP)拥有者(holder)角色或是处于TxOP响应者(responder)角色。
按当前协议的要求，当某个STA收到RTS帧时，在满足了基准802.11中可以回复CTS帧的规则条件时，如果这个STA不满足NSTR约束条件，要求这个STA必须立即回复CTS帧；如果这个STA满足NSTR约束条件，要求这个STA可以选择回复CTS帧，也可以选择不回复CTS帧。
示例性的，如图3所示，NSTRSTA MLD的链路1和链路2为NSTR链路，当链路1上的STA1处于TxOP拥有者时，即STA1正处于获得了一个TxOP持续时间(duration)时，链路2上收到了一个RTS帧，这时链路2上的STA2，即使满足了基准802.11(即802.11be之前的802.11协议中的RTS/CTS机制)中可以回复CTS帧的规则条件，因为这时链路2上的STA2满足NSTR约束条件，所以链路2上的STA2可以选择不回复CTS帧,以免对链路1上的接收造成干扰。
示例性的，如图4所示，NSTRSTA MLD的链路1和链路2为NSTR链路，当链路1上的STA1处于TxOP响应者时，链路2上收到了一个RTS帧,这时链路2上的STA2，即使满足了基准802.11中可以回复CTS帧的规则条件，因为这时链路2上的STA2满足NSTR约束条件，所以链路2上的STA2可以选择不回复CTS帧，以免对链路1上的接收造成干扰。
在当前标准的演进过程中，正在讨论：对NSTRSTA MLD在某个NSTR链路上回复ACK/BA帧时做出同样的要求。即在NSTR STA MLD上某个NSTR链路上的STA在需要立即回复ACK/BA帧时，需要看当前这个链路上的STA是否满足NSTR约束条件，如果不满足NSTR约束条件，那必须需要立即回复ACK/BA帧；如果满足NSTR约束条件，可以选择回复ACK/BA帧，也可以选择不回复ACK/BA帧。
在现有机制下，因为判断某个NSTR链路上的STA是否满足NSTR约束条件，要求是这个STA要收到一个RTS帧；但显然的是，STA在需要回复ACK/BA帧时，所对应的收到的帧一定不是RTS帧，这时就无法满足NSTR约束条件。
示例性的，如图5所示，NSTRSTA MLD的链路1和链路2为NSTR链路，当链路1上的STA1处于TxOP拥有者时，链路2上收到了一个非RTS帧,这时链路2上的STA2不满足NSTR约束条件，所以链路2上的STA2需要立即回复一个ACK帧，该ACK帧的传输可能会对链路1上的接收造成干扰。
在现有机制中，因为判断某个NSTR链路上的STA是否满足NSTR约束条件，是在收到RTS帧时就进行判断。但实际中，因为在回复CTS帧，和收到RTS帧之间是有一定的时间间隔，比如至少会有SIFS时间(16us)，那会存在如下情况：在收到RTS帧时，其他的NSTR链路上的STA为TxOP拥有者或者TxOP 响应者，但在回复CTS帧时，这时其他的NSTR链路上的STA已经结束了TxOP拥有者或者TxOP响应者角色。
示例性的，如图6所示，在链路2上的STA2预期回复CTS帧之前，链路1上的STA1已经结束了其TxOP拥有者的角色，但由于RTS帧是在STA1仍处于TxOP拥有者时收到的，导致STA2判断满足NSTR约束条件，所以可能会放弃回复CTS帧。
在现有机制中，因为判断某个NSTR链路上的STA是否满足NSTR约束条件，需要判断其他NSTR链路上的STA是否处于TxOP拥有者或是TxOP响应者。但根据当前基准802.11中关于TxOP拥有者和TxOP响应者的定义，是不包括STA接收不需要回复的帧的情况，比如STA正在接收多播或广播帧，或是，STA正在接收不需要回复ACK/BA的帧，这时STA既不是TxOP拥有者也不是TxOP响应者。
示例性的，如图7所示，对于NSTR STAMLD中的STA1，当其在链路1上接收一个广播帧时，这时链路2上的STA2收到了一个RTS帧，因为STA2这时不满足NSTR约束条件，STA2在满足了基准802.11中可以回复CTS的规则条件下，按现有机制，要求必须立即回复CTS。这就导致了STA2的CTS帧的传输，会干扰到STA1上的广播帧的接收。
在本申请实施例中，NSTR STA MLD在第一链路上接收到目标帧时，在第一链路对应的第一STA满足NSTR约束条件的情况下，则第一STA可以选择不进行回复，其中，NSTR约束条件包括：第一STA在第一链路接收到目标帧，且，目标帧是符合立即回复确认机制的帧，相较于传统的NSTR约束条件中限制了接收到的帧只能为RTS帧，进而针对RTS帧选择不进行回复的实现方式，将RTS帧拓展到范围更广的符合立即回复确认机制的目标帧，如：数据帧，增加了第一STA对接收到的帧选择不进行回复的可能性，从而避免第一STA的回复行为对其他链路上的帧收发序列的干扰。
下面，通过几个实施例对本申请技术方案进行介绍说明。
请参考图8，其示出了本申请一个实施例提供的回复控制方法的流程图。该方法可应用于图1所示的无线局域网中。该方法可以包括如下步骤：
步骤802：AP MLD中的第一AP通过第一链路向STA MLD中的第一STA发送目标帧。
本申请实施例中的AP MLD支持n条链路通信，n为大于1的正整数。也 即，本申请实施例中的STA MLD和AP MLD之间建立有多条链路，包括：第一链路至第n链路。在AP MLD中包括与n条链路分别一一对应的逻辑实体AP，如：第一链路对应AP MLD中的第一AP，第n链路对应AP MLD中的第nAP。
步骤804：STA MLD中的第一STA通过第一链路接收目标帧。
步骤806：在第一STA满足NSTR约束条件的情况下，STA MLD中的第一STA选择不对目标帧进行回复；其中，第一STA是与n条链路中的第一链路对应的STA，NSTR约束条件包括：在第一链路接收到目标帧，且，目标帧是符合立即回复确认机制的帧。
本申请实施例中的STA MLD支持n条链路通信，n为大于1的正整数。也即，本申请实施例中的STA MLD和AP MLD之间建立有多条链路，包括：第一链路至第n链路。在STA MLD中包括与n条链路分别一一对应的逻辑实体STA，如：第一链路对应STA MLD中的第一STA，第n链路对应STA MLD中的第n STA。
本申请实施例中的STA MLD为NSTR STA MLD，NSTR STA MLD指的是该STA MLD无法在多个链路上独立地同时进行数据收发，若想同时使用多个链路，需要在多个链路上同时发送或同时接收。
在本申请实施例中，n条链路中的第一链路上的第一STA判断是否满足NSTR约束条件，并在满足NSTR约束条件的情况下，第一STA选择不对接收到的目标帧进行回复。可选的，在满足NSTR约束条件的情况下，第一STA也可以选择对接收到的目标帧进行回复。
可以理解的是，由于本申请实施例中的STA MLD为NSTR STA MLD，无法在多个链路上独立地同时进行数据收发，因此，若其他链路正在进行接收，第一STA不对接收到的目标帧进行回复，可以避免干扰其他链路上的接收。
其中，NSTR约束条件是用于供STA MLD中的STA判断是否遵守立即回复确认机制(Immediate Acknowledgement Procedure)的条件。在满足NSTR约束条件的情况下，STA可以选择不进行回复，即不遵守立即回复确认机制；在不满足NSTR约束条件的情况下，STA需要进行立即回复确认，即遵守立即回复确认机制。其中，立即回复确认机制指的是接收端在接收到发送端发送的帧后，需要立即向发送端进行回复确认的机制。
在本申请实施例中，NSTR约束条件包括：第一STA在第一链路接收到目标帧，且，目标帧是符合立即回复确认机制的帧。可选的，NSTR约束条件还包括其他约束条件，将在下述实施例中进行说明，在此不进行赘述。
可以理解的是，基于传统的实现方式，NSTR约束条件中包括对接收的目标帧的类型的限制，如，需要在第一链路接收到RTS帧，RTS帧是一种符合立即回复确认机制的帧。而在本申请实施例中，NSTR约束条件包括：第一STA在第一链路接收到目标帧，且，目标帧是符合立即回复确认机制的帧，NSTR约束条件中不包括对接收的目标帧的类型的限制。
可选的，目标帧包括：RTS帧和其他需要立即回复确认的帧。相应的，对目标帧进行回复的帧包括：CTS帧、ACK帧和BA帧。其中，其他需要立即回复确认的帧指的是除了RTS帧之外，其他类型的符合立即回复确认机制的帧。
示例性的，第一STA在第一链路接收到RTS帧，此时，第一STA满足NSTR约束条件中的第一STA在第一链路接收到目标帧，且，目标帧是符合立即回复确认机制的帧，且，也满足其他NSTR约束条件，则第一STA选择不对RTS帧回复CTS帧。
示例性的，第一STA在第一链路接收到数据帧，此时，第一STA满足NSTR约束条件中的第一STA在第一链路接收到目标帧，且，目标帧是符合立即回复确认机制的帧，且，也满足其他NSTR约束条件，则第一STA选择不对数据帧回复ACK帧。
示例性的，第一STA在第一链路接收到数据帧，此时，第一STA满足NSTR约束条件中的第一STA在第一链路接收到目标帧，且，目标帧是符合立即回复确认机制的帧，且，也满足其他NSTR约束条件，则第一STA选择不对数据帧回复BA帧。
综上所述，本实施例提供的方法，NSTR STA MLD在第一链路上接收到目标帧时，在第一链路对应的第一STA满足NSTR约束条件的情况下，则第一STA可以选择不进行回复，其中，NSTR约束条件包括：第一STA在第一链路接收到目标帧，且，目标帧是符合立即回复确认机制的帧，相较于传统的NSTR约束条件中限制了接收到的帧只能为RTS帧，进而针对RTS帧选择不进行回复的实现方式，将RTS帧拓展到范围更广的符合立即回复确认机制的目标帧，如：数据帧，增加了第一STA对接收到的帧选择不进行回复的可能性，从而避免第一STA的回复行为对其他链路上的STA的帧收发序列的干扰。
在示意性实施例中，在判断某个NSTR链路上的STA是否满足NSTR约束条件时，需要考虑其他STA正在接收不需要回复的帧的情况，本申请为此提供如下两种可能的实现方式。
在一种可能的实现方式中，除了第一STA在第一链路接收到目标帧，且，目标帧是符合立即回复确认机制的帧这一条件之外，NSTR约束条件还包括如下两个条件：
条件1：第一链路属于NSTR STA MLD中的一个NSTR链路对。
也即，第一链路是NSTR链路对中的一个链路。其中，NSTR链路对中包括无法独立地同时进行数据收发的至少两个链路。
示例性的，NSTR STA MLD建立有链路1、链路2和链路3，其中，链路1和链路2属于一个NSTR链路对，链路1和链路2无法独立地同时进行数据收发。
条件2：存在至少一个第二链路上的第二STA是传输机会拥有者或传输机会响应者或处于接收无需回复的帧的状态。
其中，第二链路是第一链路所属NSTR链路对中的其他任一NSTR链路。可选的，在NSTR链路对包括两个NSTR链路的情况下，第二链路是除第一链路以外的另一个链路。
也即，在满足如下3种情况中的任意一种的情况下，第一STA认为满足条件2：NSTR链路对中的其他链路上的STA是传输机会拥有者；NSTR链路对中的其他链路上的STA是传输机会响应者；NSTR链路对中的其他链路上的STA处于接收无需回复的帧的状态。
其中，传输机会拥有者指的是STA通过信道竞争获得了一个传输机会；传输机会响应者指的是STA从传输机会拥有者处收到帧收发序列(frame exchange sequence)中的一个帧，且STA需要对该帧进行回复。
其中，处于接收无需回复的帧的状态指的是STA正在接收一种无需进行回复的帧。可选的，无需回复的帧包括以下至少一种：多播帧；广播帧；不需要回复ACK的帧；不需要回复BA的帧。
在上述实现方式中，针对其他STA正在接收不需要回复的帧的情况，对传统的NSTR约束条件的定义进行了修改，具体为：在上述条件2中加入了其他STA正在接收不需要回复的帧的情况，从而在其他STA正在接收不需要回复的帧时，第一STA也认为满足NSTR约束条件，进而可以选择不进行立即回复确认。
在另一种可能的实现方式中，STA MLD执行如下步骤：在第一STA满足NSTR约束条件，或，存在至少一个第三链路上的第三STA处于接收无需回复的帧的状态的情况下，STA MLD中的第一STA选择不对目标帧进行回复；其中， 第三链路是第一链路所属NSTR链路对中的其他任一NSTR链路。可选的，在NSTR链路对包括两个NSTR链路的情况下，第三链路是除第一链路以外的另一个链路。
其中，处于接收无需回复的帧的状态指的是STA正在接收一种无需进行回复的帧。可选的，无需回复的帧包括以下至少一种：多播帧；广播帧；不需要回复ACK的帧；不需要回复BA的帧。
可选的，在上述实现方式中，除了第一STA在第一链路接收到目标帧，且，目标帧是符合立即回复确认机制的帧这一条件之外，NSTR约束条件还包括如下两个条件：
条件1：第一链路属于NSTR STA MLD中的一个NSTR链路对。
也即，第一链路是NSTR链路对中的一个链路。其中，NSTR链路对中包括无法独立同时进行收发的至少两个链路。
条件2：存在至少一个第四链路上的第四STA是传输机会拥有者或传输机会响应者。
其中，第四链路是第一链路所属NSTR链路对中的其他任一NSTR链路。可选的，在NSTR链路对包括两个NSTR链路的情况下，第四链路是除第一链路以外的另一个链路。
也即，在满足如下2种情况中的任意一种的情况下，第一STA认为满足条件2：NSTR链路对中的其他链路上的STA是传输机会拥有者；NSTR链路对中的其他链路上的STA是传输机会响应者。
在上述实现方式中，针对其他STA正在接收不需要回复的帧的情况，不对传统的NSTR约束条件的定义进行进一步修改，而是单独判断是否其他STA正在接收不需要回复的帧，则在其他STA正在接收不需要回复的帧时，第一STA也可以选择不进行立即回复确认。
综上所述，本实施例提供的方法，在第一STA判断是否对接收到的帧选择不进行立即回复确认时，考虑其他STA正在接收不需要回复的帧的情况，从而进一步避免第一STA的回复行为对其他链路上的STA的帧收发序列的干扰。
在示意性实施例中，为了保障判断的准确性，将判断第一STA是否满足NSTR约束条件的时间点选择为第一STA预期对目标帧进行回复的时间点。
请参考图9，其示出了本申请一个实施例提供的回复控制方法的流程图。该方法可应用于图1所示的无线局域网中。该方法可以包括如下步骤：
步骤902：AP MLD中的第一AP通过第一链路向STA MLD中的第一STA发送目标帧。
步骤904：STA MLD中的第一STA通过第一链路接收目标帧。
步骤906：在第一STA预期对目标帧进行回复的时间点，判断第一链路上的第一STA是否满足NSTR约束条件。
其中，第一STA是与n条链路中的第一链路对应的STA，NSTR约束条件包括：第一STA在第一链路接收到目标帧，且，目标帧是符合立即回复确认机制的帧。
在实际中，第一STA在接收到目标帧后，一般会间隔一段时间，如：SIFS时间，从而到达第一STA预期对目标帧进行回复的时间点。在本实施例中，在第一STA预期对目标帧进行回复的时间点，判断第一STA是否满足NSTR约束条件。
可以理解的是，基于传统的实现方式，会在接收到目标帧的时间点，判断第一STA是否满足NSTR约束条件。而在本实施例中，将判断的时间点延后到第一STA预期对目标帧进行回复的时间点，从而避免在接收到目标帧的时间点到预期进行回复的时间点这一时间段内，其他链路的状态发生变化影响判断的准确性。
步骤908：在第一STA满足NSTR约束条件的情况下，STA MLD中的第一STA选择不对目标帧进行回复；其中，第一STA是与n条链路中的第一链路对应的STA，NSTR约束条件包括：在第一链路接收到目标帧，且，目标帧是符合立即回复确认机制的帧。
本步骤的实施方式可参见上述806，在此不再赘述。
综上所述，本实施例提供的方法，将判断是否满足NSTR约束条件的时间点延后到第一STA预期对目标帧进行回复的时间点，由于在判断后将会选择是否进行回复，相较于传统的在接收到目标帧的时间点进行判断，避免了在接收到目标帧的时间点到预期进行回复的时间点这一时间段内，其他链路的状态发生变化对判断准确性的影响，可以更准确地判断第一链路上的回复行为会不会对其他链路上的帧收发序列造成干扰，从而提高了空口利用率。
下面，结合如下示例对上述方法实施例进行说明。
示例性的，如图10所示，NSTR STA MLD的链路1和链路2为NSTR链路，当链路1上的STA1处于TxOP拥有者时，链路2上收到了一个非RTS帧,这 时，链路2上的STA2满足NSTR约束条件，所以链路2上的STA2可以选择不回复ACK帧，以避免对链路1上的接收造成干扰。
示例性的，如图11所示，NSTR STA MLD的链路1和链路2为NSTR链路，链路2上的STA2判断其是否满足NSTR约束条件的时间点为：STA2预期进行立即回复确认的时间点，也即图中预期发送CTS帧的时间点，这时，链路1上的STA1已经结束了作为TxOP拥有者的角色，所以STA2判断其不满足NSTR约束条件，仍然会正常回复CTS帧。
示例性的，如图12所示，NSTR STA MLD的链路1和链路2为NSTR链路，链路1上的STA1正在接收一个广播帧，链路2上的STA2在预期回复CTS帧时，判断出STA1正在接收一个广播帧，STA2可以选择不回复CTS帧，以免对STA1上的接收造成干扰。
可以理解的是，上述方法实施例可以单独实施，也可以组合实施，本申请对此不加以限制。
可以理解的是，上述方法实施例可以单独实现为STA MLD一侧的回复控制方法，也可以单独实现为AP MLD一侧的回复控制方法。
下述为本申请装置实施例，可以用于执行本申请方法实施例。对于本申请装置实施例中未披露的细节，请参照本申请方法实施例。
请参考图13，其示出了本申请一个实施例提供的回复控制装置的框图。该装置具有实现上述方法示例的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该装置可以是上文介绍的STA MLD，也可以设置在STA MLD中。所述装置是NSTR装置，所述装置支持n条链路通信，所述n为大于1的正整数。如图13所示，该装置1300可以包括：回复模块1310；
所述回复模块1310，用于在第一STA满足NSTR约束条件的情况下，所述第一STA选择不对目标帧进行回复；
其中，所述第一STA是与所述n条链路中的第一链路对应的STA，所述NSTR约束条件包括：所述第一STA在所述第一链路接收到所述目标帧，且，所述目标帧是符合立即回复确认机制的帧。
在一个可选的实施例中，所述NSTR约束条件还包括：
所述第一链路属于所述NSTR装置中的一个NSTR链路对；
存在至少一个第二链路上的第二STA是传输机会拥有者或传输机会响应者 或处于接收无需回复的帧的状态；
其中，所述第二链路是所述第一链路所属NSTR链路对中的其他任一NSTR链路。
在一个可选的实施例中，所述回复模块1310，用于在所述第一STA满足所述NSTR约束条件，或，存在至少一个第三链路上的第三STA处于接收无需回复的帧的状态的情况下，所述第一STA选择不对所述目标帧进行回复；
其中，所述第三链路是所述第一链路所属NSTR链路对中的其他任一NSTR链路。
在一个可选的实施例中，所述NSTR约束条件还包括：
所述第一链路属于所述NSTR装置中的一个NSTR链路对；
存在至少一个第四链路上的第四STA是传输机会拥有者或传输机会响应者；
其中，所述第四链路是所述第一链路所属NSTR链路对中的其他任一NSTR链路。
在一个可选的实施例中，所述无需回复的帧包括以下至少一种：
多播帧；
广播帧；
不需要回复ACK的帧；
不需要回复BA的帧。
在一个可选的实施例中，所述装置还包括：判断模块；
所述判断模块，用于在所述第一STA预期对所述目标帧进行回复的时间点，判断所述第一链路上的第一STA是否满足所述NSTR约束条件。
在一个可选的实施例中，所述目标帧包括：RTS帧和其他需要立即回复确认的帧。
需要说明的一点是，上述实施例提供的装置在实现其功能时，仅以上述各个功能模块的划分进行举例说明，实际应用中，可以根据实际需要而将上述功能分配由不同的功能模块完成，即将设备的内容结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
请参考图14，其示出了本申请一个实施例提供的STAMLD的结构示意图。 该STAMLD可以包括：处理器1401、接收器1402、发射器1403、存储器1404和总线1405。
处理器1401包括一个或者一个以上处理核心，处理器1401通过运行软件程序以及模块，从而执行各种功能应用以及记分板状态更新。
接收器1402和发射器1403可以实现为一个收发器1406，该收发器1406可以是一块通信芯片。
存储器1404通过总线1405与处理器1401相连。
存储器1404可用于存储计算机程序，处理器1401用于执行该计算机程序，以实现上述方法实施例中终端设备执行的各个步骤。
此外，存储器1404可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，易失性或非易失性存储设备包括但不限于：随机存储器(Random-Access Memory，RAM)和只读存储器(Read-Only Memory，ROM)、可擦写可编程只读存储器(Erasable Programmable Read-Only Memory，EPROM)、电可擦写可编程只读存储器(Electrically Erasable Programmable Read-Only Memory，EEPROM)、闪存或其他固态存储其技术，只读光盘(Compact Disc Read-Only Memory，CD-ROM)、高密度数字视频光盘(Digital Video Disc，DVD)或其他光学存储、磁带盒、磁带、磁盘存储或其他磁性存储设备。
在本实施例中，所述收发器1406，用于在第一STA满足NSTR约束条件的情况下，所述STA MLD中的所述第一STA选择不对目标帧进行回复；
其中，所述第一STA是与所述n条链路中的第一链路对应的STA，所述NSTR约束条件包括：所述第一STA在所述第一链路接收到所述目标帧，且，所述目标帧是符合立即回复确认机制的帧。
在一个可选的实施例中，所述NSTR约束条件还包括：
所述第一链路属于所述NSTR装置中的一个NSTR链路对；
存在至少一个第二链路上的第二STA是传输机会拥有者或传输机会响应者或处于接收无需回复的帧的状态；
其中，所述第二链路是所述第一链路所属NSTR链路对中的其他任一NSTR链路。
在一个可选的实施例中，所述收发器1406，用于在所述第一STA满足所述NSTR约束条件，或，存在至少一个第三链路上的第三STA处于接收无需回复的帧的状态的情况下，所述第一STA选择不对所述目标帧进行回复；
其中，所述第三链路是所述第一链路所属NSTR链路对中的其他任一NSTR 链路。
在一个可选的实施例中，所述NSTR约束条件还包括：
所述第一链路属于所述NSTR装置中的一个NSTR链路对；
存在至少一个第四链路上的第四STA是传输机会拥有者或传输机会响应者；
其中，所述第四链路是所述第一链路所属NSTR链路对中的其他任一NSTR链路。
在一个可选的实施例中，所述无需回复的帧包括以下至少一种：
多播帧；
广播帧；
不需要回复ACK的帧；
不需要回复BA的帧。
在一个可选的实施例中，所述处理器1401，用于在所述第一STA预期对所述目标帧进行回复的时间点，判断所述第一链路上的第一STA是否满足所述NSTR约束条件。
在一个可选的实施例中，所述目标帧包括：RTS帧和其他需要立即回复确认的帧。
本申请实施例还提供了一种计算机可读存储介质，所述存储介质中存储有计算机程序，所述计算机程序用于被STAMLD的处理器执行，以实现上述回复控制方法。
可选地，该计算机可读存储介质可以包括：只读存储器(Read-Only Memory，ROM)、随机存储器(Random-Access Memory，RAM)、固态硬盘(Solid State Drives，SSD)或光盘等。其中，随机存取记忆体可以包括电阻式随机存取记忆体(Resistance Random Access Memory，ReRAM)和动态随机存取存储器(Dynamic Random Access Memory，DRAM)。
本申请实施例还提供了一种芯片，所述芯片包括可编程逻辑电路和/或程序指令，当所述芯片在STAMLD上运行时，用于实现上述回复控制方法。
本申请实施例还提供了一种计算机程序产品或计算机程序，所述计算机程序产品或计算机程序包括计算机指令，所述计算机指令存储在计算机可读存储介质中，STAMLD的处理器从所述计算机可读存储介质读取并执行所述计算机指令，以实现上述回复控制方法。
本申请实施例中的处理器包括：专用集成电路(Application Specific  Integrated Circuit，ASIC)。
应理解，在本申请的实施例中提到的“指示”可以是直接指示，也可以是间接指示，还可以是表示具有关联关系。举例说明，A指示B，可以表示A直接指示B，例如B可以通过A获取；也可以表示A间接指示B，例如A指示C，B可以通过C获取；还可以表示A和B之间具有关联关系。
在本申请实施例的描述中，术语“对应”可表示两者之间具有直接对应或间接对应的关系，也可以表示两者之间具有关联关系，也可以是指示与被指示、配置与被配置等关系。
在本文中提及的“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
另外，本文中描述的步骤编号，仅示例性示出了步骤间的一种可能的执行先后顺序，在一些其它实施例中，上述步骤也可以不按照编号顺序来执行，如两个不同编号的步骤同时执行，或者两个不同编号的步骤按照与图示相反的顺序执行，本申请实施例对此不作限定。
本领域技术人员应该可以意识到，在上述一个或多个示例中，本申请实施例所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时，可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质，其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。
以上所述仅为本申请的示例性实施例，并不用以限制本申请，凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (18)

  1. 一种回复控制方法，其特征在于，所述方法由站点多链路设备STA MLD执行，所述STA MLD是不可同时收发NSTR STA MLD，所述STA MLD支持n条链路通信，所述n为大于1的正整数，所述方法包括：
    在第一STA满足NSTR约束条件的情况下，所述STA MLD中的所述第一STA选择不对目标帧进行回复；
    其中，所述第一STA是与所述n条链路中的第一链路对应的STA，所述NSTR约束条件包括：所述第一STA在所述第一链路接收到所述目标帧，且，所述目标帧是符合立即回复确认机制的帧。
  2. 根据权利要求1所述的方法，其特征在于，所述NSTR约束条件还包括：
    所述第一链路属于所述NSTRSTA MLD中的一个NSTR链路对；
    存在至少一个第二链路上的第二STA是传输机会拥有者或传输机会响应者或处于接收无需回复的帧的状态；
    其中，所述第二链路是所述第一链路所属NSTR链路对中的其他任一NSTR链路。
  3. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    在所述第一STA满足所述NSTR约束条件，或，存在至少一个第三链路上的第三STA处于接收无需回复的帧的状态的情况下，所述STA MLD中的所述第一STA选择不对所述目标帧进行回复；
    其中，所述第三链路是所述第一链路所属NSTR链路对中的其他任一NSTR链路。
  4. 根据权利要求3所述的方法，其特征在于，所述NSTR约束条件还包括：
    所述第一链路属于所述NSTRSTA MLD中的一个NSTR链路对；
    存在至少一个第四链路上的第四STA是传输机会拥有者或传输机会响应者；
    其中，所述第四链路是所述第一链路所属NSTR链路对中的其他任一NSTR链路。
  5. 根据权利要求2至4任一所述的方法，其特征在于，所述无需回复的帧包括以下至少一种：
    多播帧；
    广播帧；
    不需要回复确认ACK的帧；
    不需要回复块确认BA的帧。
  6. 根据权利要求1至5任一所述的方法，其特征在于，所述方法还包括：
    在所述第一STA预期对所述目标帧进行回复的时间点，判断所述第一链路上的第一STA是否满足所述NSTR约束条件。
  7. 根据权利要求1至6任一所述的方法，其特征在于，
    所述目标帧包括：请求发送RTS帧和其他需要立即回复确认的帧。
  8. 一种回复控制装置，其特征在于，所述装置是不可同时收发NSTR装置，所述装置支持n条链路通信，所述n为大于1的正整数，所述装置包括：回复模块；
    所述回复模块，用于在第一STA满足NSTR约束条件的情况下，所述第一STA选择不对目标帧进行回复；
    其中，所述第一STA是与所述n条链路中的第一链路对应的STA，所述NSTR约束条件包括：所述第一STA在所述第一链路接收到所述目标帧，且，所述目标帧是符合立即回复确认机制的帧。
  9. 根据权利要求8所述的装置，其特征在于，所述NSTR约束条件还包括：
    所述第一链路属于所述NSTR装置中的一个NSTR链路对；
    存在至少一个第二链路上的第二STA是传输机会拥有者或传输机会响应者或处于接收无需回复的帧的状态；
    其中，所述第二链路是所述第一链路所属NSTR链路对中的其他任一NSTR链路。
  10. 根据权利要求8所述的装置，其特征在于，
    所述回复模块，用于在所述第一STA满足所述NSTR约束条件，或，存在至少一个第三链路上的第三STA处于接收无需回复的帧的状态的情况下，所述第一STA选择不对所述目标帧进行回复；
    其中，所述第三链路是所述第一链路所属NSTR链路对中的其他任一NSTR链路。
  11. 根据权利要求10所述的装置，其特征在于，所述NSTR约束条件还包括：
    所述第一链路属于所述NSTR装置中的一个NSTR链路对；
    存在至少一个第四链路上的第四STA是传输机会拥有者或传输机会响应者；
    其中，所述第四链路是所述第一链路所属NSTR链路对中的其他任一NSTR链路。
  12. 根据权利要求9至11任一所述的装置，其特征在于，所述无需回复的帧包括以下至少一种：
    多播帧；
    广播帧；
    不需要回复确认ACK的帧；
    不需要回复块确认BA的帧。
  13. 根据权利要求8至12任一所述的装置，其特征在于，所述装置还包括：判断模块；
    所述判断模块，用于在所述第一STA预期对所述目标帧进行回复的时间点，判断所述第一链路上的第一STA是否满足所述NSTR约束条件。
  14. 根据权利要求8至13任一所述的装置，其特征在于，
    所述目标帧包括：请求发送RTS帧和其他需要立即回复确认的帧。
  15. 一种站点多链路设备STAMLD，其特征在于，所述STAMLD是不可同时收发NSTRSTAMLD，所述STAMLD支持n条链路通信，所述n为大于1的正整数，所述STAMLD包括收发器；
    所述收发器，用于在第一STA满足NSTR约束条件的情况下，所述STA MLD中的所述第一STA选择不对目标帧进行回复；
    其中，所述第一STA是与所述n条链路中的第一链路对应的STA，所述NSTR约束条件包括：所述第一STA在所述第一链路接收到所述目标帧，且，所述目标帧是符合立即回复确认机制的帧。
  16. 一种计算机可读存储介质，其特征在于，所述存储介质中存储有计算机程序，所述计算机程序用于被处理器执行，以实现如权利要求1至7任一项所述的回复控制方法。
  17. 一种芯片，其特征在于，所述芯片包括可编程逻辑电路和/或程序指令，当所述芯片运行时，用于实现如权利要求1至7任一项所述的回复控制方法。
  18. 一种计算机程序产品或计算机程序，其特征在于，所述计算机程序产品或计算机程序包括计算机指令，所述计算机指令存储在计算机可读存储介质中，处理器从所述计算机可读存储介质读取并执行所述计算机指令，以实现如权利要求1至7任一项所述的回复控制方法。
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MATTHEW FISCHER (BROADCOM INC): "CR-NSTR-limited", IEEE DRAFT; 11-21-1258-02-00BE-CR-NSTR-LIMITED, IEEE-SA MENTOR, PISCATAWAY, NJ USA, vol. 802.11 EHT; 802.11be, no. 2, 26 August 2021 (2021-08-26), Piscataway, NJ USA, pages 1 - 13, XP068184699 *

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